Finding the Fourth Proportional to 3,395.61, 5,092.32 and 1,086.57

Step by Step Solution

1. Step 1: Write the proportion equation
   3,395.61 : 5,092.32 = 1,086.57 : x
2. Step 2: Convert to fraction form
   3,395.61/5,092.32 = 1,086.57/x
3. Step 3: Cross multiply
   3,395.61x = 5,092.32 × 1,086.57
4. Step 4: Simplify right side
   3,395.61x = 5,533,162.14
5. Step 5: Solve for x
   x = 5,533,162.14/3,395.61
6. Step 6: Final answer
   x = 1,629.50